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feat: db update ojj#6

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feat: db update ojj#6
oscarjorgejorge wants to merge 1 commit intoLIDR-academy:mainfrom
oscarjorgejorge:feat/database-update-ojj

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@oscarjorgejorge oscarjorgejorge commented Nov 16, 2025

Summary by CodeRabbit

  • New Features

    • Expanded system to a full Applicant Tracking System with company management, job position posting, application tracking, and interview workflow management.
    • Enhanced candidate profiles with additional contact information and employment history tracking.
  • Chores

    • Updated database configuration and structure to support the expanded ATS functionality.
    • Added migration and seeding tooling for database setup and initialization.

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coderabbitai bot commented Nov 16, 2025

Walkthrough

The PR implements a comprehensive database migration from a basic candidate management system to a full Applicant Tracking System (ATS) by introducing 8 new database tables, expanding existing Candidate/Education/WorkExperience/Resume models with additional fields and cascade delete rules, establishing complex relational networks with foreign keys and indexes, and providing extensive migration documentation and automation tooling.

Changes

Cohort / File(s) Summary
Environment Configuration
.env, backend/.env
Updated database credentials and connection strings; added DATABASE_URL pointing to ats_database with public schema
Migration Documentation
backend/prisma/README.md, backend/prisma/ATS_SYSTEM_OVERVIEW.md, backend/prisma/CHANGES_SUMMARY.md, backend/prisma/DATABASE_SCHEMA.md, backend/prisma/MIGRATION_GUIDE.md, backend/prisma/QUICK_START.md
Added comprehensive ATS documentation: architecture overview, ER diagrams, step-by-step migration guide, schema reference, changes summary with use cases, and quick-start commands
Migration & Schema Files
backend/prisma/migrations/20251116182548_ats_system_expansion/migration.sql, backend/prisma/migrations/manual_migration.sql, backend/prisma/migrations/migration_lock.toml
Created SQL migration creating 12 tables (existing 4 improved + 8 new: Company, Employee, Position, InterviewFlow, InterviewStep, InterviewType, Application, Interview) with foreign keys, indexes, and cascade delete behaviors; manual fallback SQL; normalized migration lock comments
Schema & ORM Configuration
backend/prisma/schema.prisma
Expanded Candidate model with lastName, email, phone, address, applications relation and email index; added cascade delete to Education/WorkExperience/Resume; introduced 8 new models with 18 indexes and 14 foreign keys linking companies, positions, interview flows, and applications
Backend Tooling & Scripts
backend/package.json, backend/package.json.example, backend/scripts/seed-ats.ts
Added Prisma CLI scripts (prisma:migrate, prisma:studio, prisma:validate, db:*); added devDependencies (@types/jest, jest, ts-jest, updated ts-node); created seed script populating interview types, companies, positions, candidates, and applications
Package Management
package.json, docker-compose.yml
Added @prisma/client and prisma v6.19.0 dependencies; removed version: "3.1" from docker-compose.yml
Project Documentation
README_DATABASE_MIGRATION.md, MIGRATION_SUMMARY.md, prompts/prompts-iniciales.md
Added bilingual migration guide with schema transformation, before/after comparison, step-by-step instructions, and verification checklist; added comprehensive ATS expansion summary and prompt artifacts

Sequence Diagram

sequenceDiagram
    participant Admin as Admin/Recruiter
    participant API
    participant DB as Database
    
    rect rgb(200, 230, 255)
    Note over Admin,DB: 1. Setup Phase
    Admin->>API: Create Company & Employees
    API->>DB: Insert Company, Employee records
    DB-->>API: ✓ Created
    end
    
    rect rgb(220, 240, 200)
    Note over Admin,DB: 2. Position Publication
    Admin->>API: Post Job Position + Interview Flow
    API->>DB: Insert Position, InterviewFlow, InterviewSteps
    DB-->>API: ✓ Position Live
    end
    
    rect rgb(255, 240, 200)
    Note over Admin,DB: 3. Candidate Application
    Admin->>API: Candidate applies for Position
    API->>DB: Insert Application (links Candidate ↔ Position)
    DB-->>API: ✓ Application Recorded
    end
    
    rect rgb(240, 220, 240)
    Note over Admin,DB: 4. Interview Process
    Admin->>API: Schedule Interview via InterviewStep
    API->>DB: Insert Interview (links Application ↔ InterviewStep ↔ Employee)
    DB-->>API: ✓ Interview Scheduled
    API->>DB: Update Interview with result/score
    DB-->>API: ✓ Updated
    end
Loading

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~50 minutes

  • Migration SQL script (migration.sql and manual_migration.sql): Requires careful validation of 12 table definitions, 14 foreign key constraints with cascade/restrict rules, index placement, and data integrity checks across multi-tenant and relational structures.
  • Schema changes (schema.prisma): Verify all model relationships, cascade behaviors, index strategies, and optional/required field designations across 12 models with interconnected workflows.
  • Cascade delete logic: Confirm that cascade delete rules on Candidate, Education, WorkExperience, Resume, and cross-domain relations prevent unintended data loss and maintain referential integrity.
  • Seed script complexity: Validate nested data creation logic and relationships in the TypeScript seed implementation.

Poem

🐇 A warren expands to hold more dreams,
Eight new tables and cascade streams,
Positions, interviews, flows refined,
Candidates tracked, one-to-many aligned,
The ATS blooms—from simple to grand! ✨

Pre-merge checks and finishing touches

❌ Failed checks (1 warning, 1 inconclusive)
Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. You can run @coderabbitai generate docstrings to improve docstring coverage.
Title check ❓ Inconclusive The title 'feat: db update ojj' is vague and lacks specificity about the actual changes made. While it indicates a database-related feature, it does not clearly communicate the scope or nature of the update. Revise the title to be more descriptive, such as 'feat: expand database schema to full ATS system with company, position, and interview management' to clearly convey the primary changes.
✅ Passed checks (1 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
✨ Finishing touches
  • 📝 Generate docstrings
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment

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Actionable comments posted: 7

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)
backend/package.json (1)

25-25: Align Prisma versions across package.json files to resolve dependency conflict.

Verification confirms the version mismatch: backend uses Prisma ^5.13.0 while the root package.json specifies ^6.19.0 for both @prisma/client and prisma. The incompatible major versions (5.x vs 6.x) cause npm to detect a conflict. Update either backend/package.json lines 25 and 44 or root package.json lines 3 and 12 to use consistent versions, ensuring alignment between the Prisma client and CLI.

🧹 Nitpick comments (10)
backend/package.json.example (1)

1-27: LGTM with documentation suggestion.

This example package.json provides a clear template for the backend configuration. The scripts are well-organized and cover essential Prisma and database operations.

Consider adding a brief comment at the top of the file explaining its purpose:

 {
+  "_comment": "Example package.json - copy to package.json and adjust as needed",
   "name": "backend",
   "version": "2.0.0",
backend/prisma/ATS_SYSTEM_OVERVIEW.md (1)

1-436: Excellent comprehensive documentation!

This overview provides a thorough explanation of the ATS system architecture, workflows, and entities. The visual diagrams and code examples are particularly helpful.

For improved markdown compliance, consider adding language identifiers to the unlabeled code blocks (Lines 5, 57, 245, 252, 259, 315, 365) as flagged by markdownlint:

-```
+```text
 ┌────────────────────────────────────────────────────────────────────────────┐
 │                          ATS SYSTEM ARCHITECTURE                           │

This helps rendering engines apply proper syntax highlighting.

backend/prisma/DATABASE_SCHEMA.md (1)

1-404: Comprehensive and well-structured schema documentation!

This document provides excellent technical detail on the ATS database schema, including:

  • Complete ER diagram with relationships
  • Index strategy and rationale
  • Constraint documentation
  • Practical SQL examples
  • Data flow illustrations

The documentation will be invaluable for developers working with the database.

For improved markdown compliance, consider:

  1. Add a blank line before the table at Line 137 (flagged by MD058)
  2. Add a language identifier to the code block at Line 196:
-```
+```text
 - VarChar(15):   phone

These are minor formatting improvements that enhance rendering consistency.

backend/scripts/seed-ats.ts (1)

31-74: Verify upsert behavior with hardcoded IDs.

The upsert operations use hardcoded IDs (1-5) for InterviewType records. On a fresh database, if the sequence starts at a different value or if these IDs are already taken by other records, this could cause inconsistencies. The empty update object {} also means no fields are updated if records exist.

Consider using createMany with skipDuplicates: true or removing the hardcoded id field to let the database auto-generate IDs consistently:

-const phoneScreening = await prisma.interviewType.upsert({
-  where: { id: 1 },
-  update: {},
-  create: {
+const phoneScreening = await prisma.interviewType.create({
+  data: {
     name: 'Phone Screening',
     description: 'Initial phone call to assess basic qualifications and interest'
   }
 });

Alternatively, if these are meant to be idempotent seed records, consider using unique constraints on the name field and upserting by name instead of ID.

backend/prisma/migrations/manual_migration.sql (2)

24-26: Consider backfilling existing NULL uploadDate values.

The default value for uploadDate is set to CURRENT_TIMESTAMP, but this only affects new rows. If there are existing Resume records with NULL uploadDate values, they will remain NULL.

If you want to ensure all existing records have a valid upload date, add a backfill statement:

-- After setting the default
UPDATE "Resume" SET "uploadDate" = CURRENT_TIMESTAMP WHERE "uploadDate" IS NULL;

However, if the Resume table is new or guaranteed to be empty, this is not necessary.


163-164: Consider the cascade behavior for Employee deletion.

The Interview table has ON DELETE RESTRICT for the Employee foreign key. This means you cannot delete an Employee record if they have conducted any interviews, even historical ones.

Consider whether this is the intended behavior:

  • RESTRICT: Protects data integrity but prevents employee removal (current)
  • SET NULL: Allows employee deletion but loses interviewer information
  • Soft delete: Add an isActive flag to Employee (already exists) and never actually DELETE records

Since the Employee table already has an isActive boolean (line 64), using soft deletes might be the better approach. Keep the RESTRICT constraint but handle employee "deletion" by setting isActive = false instead of using SQL DELETE.

backend/prisma/QUICK_START.md (1)

69-236: Inconsistency between example seed script and actual seed-ats.ts.

This embedded example uses .create() for InterviewTypes (lines 79-89) without hardcoded IDs, which is better practice. However, the actual backend/scripts/seed-ats.ts file uses .upsert() with hardcoded IDs (1-5).

Consider either:

  1. Update the actual seed-ats.ts to match this cleaner example (use create instead of upsert with hardcoded IDs)
  2. Remove this embedded example and simply reference the actual file
  3. Add a note explaining why they differ

This will avoid confusion for users who might copy this example thinking it's the complete solution, when there's actually a more comprehensive seed file available.

backend/prisma/MIGRATION_GUIDE.md (1)

1-275: Documentation is comprehensive but has minor Spanish grammar/formatting inconsistencies.

The migration guide is well-structured and provides excellent detail on the ATS expansion. LanguageTool flags ~50 minor Spanish grammar and punctuation preferences (e.g., missing periods after list items, capitalization style) that are low-impact for documentation clarity. These can be addressed in a follow-up pass if desired.

prompts/prompts-iniciales.md (2)

11-98: Mermaid diagram uses snake_case but schema.prisma uses camelCase—ensure consistency for developer clarity.

The ER diagram documents field names in snake_case (e.g., company_id, interview_flow_id), but the actual Prisma schema uses camelCase (e.g., companyId, interviewFlowId). While the database will store snake_case column names, developers working with the Prisma ORM see camelCase in code. Update the Mermaid diagram field names to match schema.prisma for consistency:

    EMPLOYEE {
        int id PK
        int company_id FK
-       int company_id FK
+       int companyId FK

This prevents confusion when developers cross-reference the diagram with actual code.


11-11: Add language specifier to Mermaid code block for proper rendering.

The fenced code block at line 11 is missing a language specifier. Update for proper syntax highlighting:

-```mermaid
+```mermaid
 erDiagram

DB_PASSWORD=D1ymf8wyQEGthFR1E9xhCq
DB_USER=LTIdbUser
DB_NAME=LTIdb
# Database Configuration for Docker Compose
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⚠️ Potential issue | 🟡 Minor

Remove BOM character.

The byte-order mark (BOM) character  at the start of the comment causes static analysis warnings and can lead to parsing issues.

Apply this diff:

-# Database Configuration for Docker Compose
+# Database Configuration for Docker Compose
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
# Database Configuration for Docker Compose
# Database Configuration for Docker Compose
🧰 Tools
🪛 dotenv-linter (4.0.0)

[warning] 1-1: [IncorrectDelimiter] The # Database Configuration for Docker Compose key has incorrect delimiter

(IncorrectDelimiter)


[warning] 1-1: [KeyWithoutValue] The # Database Configuration for Docker Compose key should be with a value or have an equal sign

(KeyWithoutValue)


[warning] 1-1: [LeadingCharacter] Invalid leading character detected

(LeadingCharacter)


[warning] 1-1: [LowercaseKey] The # Database Configuration for Docker Compose key should be in uppercase

(LowercaseKey)

🤖 Prompt for AI Agents
In .env around line 1 there is a leading BOM character (�) before the comment "#
Database Configuration for Docker Compose" that triggers static analysis and
parsing issues; remove the BOM by re-saving the file as UTF-8 without BOM or
deleting the invisible character so the file begins directly with the '#'
comment (ensure no other invisible bytes remain).

Comment on lines +1 to +8
# Database Configuration for Docker Compose
DB_USER=postgres
DB_PASSWORD=postgres123
DB_NAME=ats_database
DB_PORT=5432
DATABASE_URL="postgresql://${DB_USER}:${DB_PASSWORD}@localhost:${DB_PORT}/${DB_NAME}"

# Prisma Database URL
DATABASE_URL="postgresql://postgres:postgres123@localhost:5432/ats_database?schema=public"
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⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

Clarify configuration strategy and address duplication.

This file contains potential issues:

  1. Duplication: Both root .env and backend/.env define DATABASE_URL. It's unclear which takes precedence or if both are needed.

  2. Redundancy: Lines 2-5 define individual DB variables (DB_USER, DB_PASSWORD, DB_NAME, DB_PORT) while Line 8 provides a composite DATABASE_URL. This redundancy can lead to inconsistencies if one is updated but not the other.

  3. Security: Hardcoded credentials are committed if this file is tracked.

Recommendations:

  • Document which .env file is authoritative (root vs backend)
  • Choose either individual variables OR DATABASE_URL, not both
  • Ensure .env files are in .gitignore and provide .env.example templates

🏁 Script executed:

#!/bin/bash
# Check for .env file conflicts and tracking status
echo "=== Searching for DATABASE_URL definitions ==="
rg -n "DATABASE_URL" --type env .env backend/.env 2>/dev/null || rg -n "DATABASE_URL" .env backend/.env

echo -e "\n=== Checking .gitignore coverage ==="
rg "\.env" .gitignore

echo -e "\n=== Checking if .env files are tracked ==="
git ls-files | rg "\.env$"

Length of output: 382


Immediately remove .env files from git tracking and fix .gitignore configuration.

Verification confirms critical issues:

  1. .env files are tracked in git: Both .env and backend/.env are committed with hardcoded credentials (postgres/postgres123). This is a security risk—credentials should never be in version control.

  2. .gitignore is misconfigured: The patterns #**/.env and # .env are commented out (prefixed with #), so they don't actually exclude .env files. Only **/.env.example is active.

  3. Duplication confirmed: DATABASE_URL is defined identically in both files (lines 2-5 and line 8 in root .env).

Required actions:

  • Remove .env and backend/.env from git history using git rm --cached
  • Fix .gitignore by uncommenting or correcting the patterns to: .env and backend/.env
  • Provide .env.example and backend/.env.example templates with placeholder values
  • Document which .env file takes precedence
🧰 Tools
🪛 dotenv-linter (4.0.0)

[warning] 1-1: [IncorrectDelimiter] The # Database Configuration for Docker Compose key has incorrect delimiter

(IncorrectDelimiter)


[warning] 1-1: [KeyWithoutValue] The # Database Configuration for Docker Compose key should be with a value or have an equal sign

(KeyWithoutValue)


[warning] 1-1: [LeadingCharacter] Invalid leading character detected

(LeadingCharacter)


[warning] 1-1: [LowercaseKey] The # Database Configuration for Docker Compose key should be in uppercase

(LowercaseKey)


[warning] 2-2: [UnorderedKey] The DB_USER key should go before the # Database Configuration for Docker Compose key

(UnorderedKey)


[warning] 3-3: [UnorderedKey] The DB_PASSWORD key should go before the DB_USER key

(UnorderedKey)


[warning] 4-4: [UnorderedKey] The DB_NAME key should go before the DB_PASSWORD key

(UnorderedKey)


[warning] 5-5: [UnorderedKey] The DB_PORT key should go before the DB_USER key

(UnorderedKey)

🤖 Prompt for AI Agents
In .env (lines 1-8) and backend/.env remove sensitive credentials from version
control and update git tracking: run git rm --cached .env backend/.env and
commit the removals so the files remain locally but are untracked; fix
.gitignore by adding uncommented entries ".env" and "backend/.env" (or
"**/.env") to ensure both root and backend env files are ignored; add
.env.example and backend/.env.example files with placeholder values (e.g.,
DB_USER=your_user, DB_PASSWORD=your_password, DB_NAME=your_db, DB_PORT=5432,
DATABASE_URL="postgresql://...") and commit them; finally add a short note in
the repo README (or a new docs/ENV.md) stating which file takes precedence (root
.env vs backend/.env) and how to populate local .env from the corresponding
.env.example.

Comment on lines +1 to +2
# Database Configuration
DATABASE_URL="postgresql://postgres:postgres123@localhost:5432/ats_database?schema=public"
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⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

Remove BOM character and address security concerns.

The file contains several issues:

  1. BOM Character: A byte-order mark (BOM) character  precedes the comment on Line 1, causing multiple static analysis warnings. This invisible character can cause parsing issues.

  2. Hardcoded Credentials: The DATABASE_URL contains hardcoded credentials (postgres:postgres123). If this file is tracked in version control, it poses a security risk.

  3. File Purpose: The filename backend/.env suggests this is a template or example. Consider renaming to backend/.env.example and ensure the actual .env file is in .gitignore.

Apply this diff to remove the BOM and rename the file:

-# Database Configuration
+# Database Configuration
 DATABASE_URL="postgresql://postgres:postgres123@localhost:5432/ats_database?schema=public"

Then verify that:

  • backend/.env is in .gitignore
  • Developers use backend/.env.example as a template
  • Actual credentials are set via environment variables or a local .env file

🏁 Script executed:

#!/bin/bash
# Check if .env files are properly ignored
echo "=== Checking .gitignore for .env files ==="
rg -n "\.env" .gitignore

echo -e "\n=== Checking if .env files are tracked in git ==="
git ls-files | rg "\.env$"

Length of output: 150


Remove BOM character and immediately address tracked credentials in version control.

The file contains critical issues:

  1. BOM Character: Line 1 has a byte-order mark (BOM) character  preceding the comment, causing static analysis warnings and potential parsing issues.

  2. Hardcoded Credentials in Version Control: The DATABASE_URL contains hardcoded credentials (postgres:postgres123), and verification confirms both .env and backend/.env are actively tracked in git. This is a security vulnerability.

  3. .gitignore Ineffective: The .env rule in .gitignore is not preventing tracking (line 3 appears to be commented).

Required actions:

  • Remove .env and backend/.env from git history: git rm --cached .env backend/.env
  • Fix .gitignore: Ensure .env rule is active (uncomment line 3 if needed)
  • Remove BOM character from Line 1
  • Regenerate credentials and update only local .env files
  • Use backend/.env.example as a template with placeholder credentials
-# Database Configuration
+# Database Configuration
 DATABASE_URL="postgresql://postgres:postgres123@localhost:5432/ats_database?schema=public"
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
# Database Configuration
DATABASE_URL="postgresql://postgres:postgres123@localhost:5432/ats_database?schema=public"
# Database Configuration
DATABASE_URL="postgresql://postgres:postgres123@localhost:5432/ats_database?schema=public"
🧰 Tools
🪛 dotenv-linter (4.0.0)

[warning] 1-1: [IncorrectDelimiter] The # Database Configuration key has incorrect delimiter

(IncorrectDelimiter)


[warning] 1-1: [KeyWithoutValue] The # Database Configuration key should be with a value or have an equal sign

(KeyWithoutValue)


[warning] 1-1: [LeadingCharacter] Invalid leading character detected

(LeadingCharacter)


[warning] 1-1: [LowercaseKey] The # Database Configuration key should be in uppercase

(LowercaseKey)


[warning] 2-2: [UnorderedKey] The DATABASE_URL key should go before the # Database Configuration key

(UnorderedKey)

🤖 Prompt for AI Agents
In backend/.env around lines 1 to 2, remove the leading BOM character on line 1
and replace the tracked file with a non-sensitive template; specifically: delete
the BOM so the file starts clean, remove both .env and backend/.env from git
tracking with git rm --cached .env backend/.env, fix .gitignore to ensure a
plain un-commented .env entry so future .env files are ignored, create or update
backend/.env.example with placeholder values (no real credentials), and
regenerate database credentials locally and store them only in your untracked
local .env files.

Comment on lines +85 to +86
- salaryMin: decimal(10,2, opcional)
- salaryMax: decimal(10,2, opcional)
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⚠️ Potential issue | 🟡 Minor

Fix malformed field documentation syntax.

Line 85 has mismatched parentheses that could confuse readers about the actual field type and optionality.

-  salaryMax: decimal(10,2, opcional)
+  salaryMax: decimal(10,2), opcional

This formatting issue appears in multiple field descriptions; search for similar patterns and correct them for consistency.

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
- salaryMin: decimal(10,2, opcional)
- salaryMax: decimal(10,2, opcional)
- salaryMin: decimal(10,2, opcional)
- salaryMax: decimal(10,2), opcional
🤖 Prompt for AI Agents
In backend/prisma/MIGRATION_GUIDE.md around lines 85-86, the field docs use
malformed parentheses "decimal(10,2, opcional)" which misplaces the optionality
token inside the type; fix by moving "opcional" outside the type and using
consistent syntax like "salaryMin: decimal(10,2) — opcional" (or "salaryMin:
decimal(10,2) (opcional)") and apply the same correction to salaryMax and any
other fields showing the same pattern across the document for consistency.

Comment on lines +148 to +151
CREATE UNIQUE INDEX "Candidate_email_key" ON "Candidate"("email");

-- CreateIndex
CREATE INDEX "Candidate_email_idx" ON "Candidate"("email");
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⚠️ Potential issue | 🟡 Minor

Redundant index on Candidate.email.

Lines 148 and 151 create both a unique constraint and a separate index on the same column:

CREATE UNIQUE INDEX "Candidate_email_key" ON "Candidate"("email");
CREATE INDEX "Candidate_email_idx" ON "Candidate"("email");

In PostgreSQL, a UNIQUE constraint automatically creates a unique index. The second regular index on the same column is redundant and wastes storage space.

This appears to be a Prisma schema definition issue. Check your schema.prisma file - you likely have both:

email String @unique
@@index([email])

Remove the redundant @@index([email]) since @unique already creates an index. The same issue likely exists for Employee.email (lines 166 and 172).

🤖 Prompt for AI Agents
In backend/prisma/migrations/20251116182548_ats_system_expansion/migration.sql
around lines 148–151 (and similarly for Employee.email around lines ~166–172),
the migration creates both a UNIQUE index and a separate non-unique index on the
same email columns which is redundant; update your Prisma schema.prisma to
remove the explicit @@index([email]) entries for Candidate.email and
Employee.email (leave the email String fields with @unique), then regenerate the
migration (prisma migrate dev/resolve and/or create a new clean migration) so
the redundant CREATE INDEX statements are removed from the migration SQL.

Comment on lines +103 to +129
model Position {
id Int @id @default(autoincrement())
companyId Int
interviewFlowId Int
title String @db.VarChar(255)
description String? @db.Text
status String @default("draft") @db.VarChar(50)
isVisible Boolean @default(true)
location String? @db.VarChar(255)
jobDescription String? @db.Text
requirements String? @db.Text
responsibilities String? @db.Text
salaryMin Decimal? @db.Decimal(10, 2)
salaryMax Decimal? @db.Decimal(10, 2)
employmentType String? @db.VarChar(50)
benefits String? @db.Text
companyDescription String? @db.Text
applicationDeadline DateTime?
contactInfo String? @db.VarChar(255)
company Company @relation(fields: [companyId], references: [id], onDelete: Cascade)
interviewFlow InterviewFlow @relation(fields: [interviewFlowId], references: [id])
applications Application[]

@@index([companyId])
@@index([interviewFlowId])
@@index([status])
}
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⚠️ Potential issue | 🟠 Major

Position.interviewFlow relation missing onDelete behavior—positions become orphaned if flow is deleted.

Line 123 defines the interviewFlow relation without specifying what happens if the InterviewFlow is deleted. If an InterviewFlow is removed, Position records will have dangling foreign keys, and queries requiring valid flows will fail.

Choose one approach:

Option A (Cascade deletion): Delete positions when flow is deleted

  interviewFlow         InterviewFlow  @relation(fields: [interviewFlowId], references: [id], onDelete: Cascade)

Option B (Restrict deletion): Prevent flow deletion if positions reference it

  interviewFlow         InterviewFlow  @relation(fields: [interviewFlowId], references: [id], onDelete: Restrict)

Option C (Allow orphans): Set NULL on deletion (requires interviewFlowId Int? as optional)

  interviewFlowId       Int?
  interviewFlow         InterviewFlow  @relation(fields: [interviewFlowId], references: [id], onDelete: SetNull)

Choose based on business logic: do positions belong to flows, or can flows be reusable templates? Recommend Option B (Restrict) if flows are shared templates to prevent accidental deletion; Option A (Cascade) if flows are position-specific.

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
model Position {
id Int @id @default(autoincrement())
companyId Int
interviewFlowId Int
title String @db.VarChar(255)
description String? @db.Text
status String @default("draft") @db.VarChar(50)
isVisible Boolean @default(true)
location String? @db.VarChar(255)
jobDescription String? @db.Text
requirements String? @db.Text
responsibilities String? @db.Text
salaryMin Decimal? @db.Decimal(10, 2)
salaryMax Decimal? @db.Decimal(10, 2)
employmentType String? @db.VarChar(50)
benefits String? @db.Text
companyDescription String? @db.Text
applicationDeadline DateTime?
contactInfo String? @db.VarChar(255)
company Company @relation(fields: [companyId], references: [id], onDelete: Cascade)
interviewFlow InterviewFlow @relation(fields: [interviewFlowId], references: [id])
applications Application[]
@@index([companyId])
@@index([interviewFlowId])
@@index([status])
}
model Position {
id Int @id @default(autoincrement())
companyId Int
interviewFlowId Int
title String @db.VarChar(255)
description String? @db.Text
status String @default("draft") @db.VarChar(50)
isVisible Boolean @default(true)
location String? @db.VarChar(255)
jobDescription String? @db.Text
requirements String? @db.Text
responsibilities String? @db.Text
salaryMin Decimal? @db.Decimal(10, 2)
salaryMax Decimal? @db.Decimal(10, 2)
employmentType String? @db.VarChar(50)
benefits String? @db.Text
companyDescription String? @db.Text
applicationDeadline DateTime?
contactInfo String? @db.VarChar(255)
company Company @relation(fields: [companyId], references: [id], onDelete: Cascade)
interviewFlow InterviewFlow @relation(fields: [interviewFlowId], references: [id], onDelete: Restrict)
applications Application[]
@@index([companyId])
@@index([interviewFlowId])
@@index([status])
}

@@ -1,5 +1,6 @@
{
"dependencies": {
"@prisma/client": "^6.19.0",
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⚠️ Potential issue | 🟠 Major

🧩 Analysis chain

Verify Prisma version 6.19.0 compatibility.

The root package.json specifies Prisma ^6.19.0, but backend/package.json uses ^5.13.0. This version mismatch could cause compatibility issues.

Additionally, since Prisma 6.19.0 may be a recent release (beyond my knowledge cutoff), verification is needed to ensure:

  • The version exists and is stable
  • It's compatible with the project's dependencies
  • Migration from 5.13.0 to 6.19.0 doesn't introduce breaking changes

Consider aligning the Prisma versions across root and backend package files, or document why different versions are needed.

Also applies to: 12-12


🌐 Web query:

What is the latest stable version of Prisma and are there breaking changes between Prisma 5.13.0 and 6.19.0?

💡 Result:

Short answer: as of Nov 16, 2025 the latest stable Prisma ORM release is 6.19.0. [1][2]

Are there breaking changes between 5.13.0 and 6.19.0?

  • Yes. Upgrading from any v5.x to v6.x is a major-version upgrade and can include breaking changes; Prisma follows SemVer so breaking changes may appear in major releases. [3][4]
  • Major upgrade areas to check (high‑level): schema/prisma config changes (prisma.config.ts), new generator/adapter/driver model (database drivers like @prisma/adapter-pg), updated minimum Node/TypeScript requirements, and other documented v5→v6 breaking items in the upgrade guides and release notes. You should read the v6 upgrade guide and changelogs for the full, version‑by‑version list. [3][4][5]

References

  1. Prisma blog — Announcing Prisma 6.19.0 (Nov 5, 2025).
  2. Prisma changelog (shows 6.x releases).
  3. Prisma docs — Upgrade to Prisma ORM 6 (breaking changes & upgrade guide).
  4. Prisma docs — Upgrade to Prisma ORM 5 (major v5 breaking changes context).
  5. Prisma docs — Releases & SemVer policy.

I'll verify the actual package.json files to confirm the version mismatch and determine the scope of the issue.


🏁 Script executed:

#!/bin/bash
# Check Prisma versions in root and backend package.json files
echo "=== Root package.json (Prisma version) ==="
cat package.json | grep -A1 "@prisma/client"

echo ""
echo "=== Backend package.json (Prisma version) ==="
if [ -f backend/package.json ]; then
  cat backend/package.json | grep -A1 "@prisma/client"
else
  echo "backend/package.json not found, checking for alternative paths..."
  find . -name "package.json" -type f | head -20
fi

Length of output: 209


Align Prisma versions across root and backend package.json files.

Version mismatch confirmed: root specifies ^6.19.0 while backend specifies ^5.13.0. Since both are in the same repository, they should use the same major version to avoid runtime conflicts.

Prisma 6.19.0 is the current stable release. Upgrading from v5 to v6 includes breaking changes per SemVer; review the Prisma upgrade guide before aligning. Choose either to:

  • Upgrade backend to ^6.19.0 (align to latest), or
  • Downgrade root to ^5.13.0 (align to current backend)

Then document the reason if different versions must be maintained.

🤖 Prompt for AI Agents
In package.json around line 3, the root dependency "@prisma/client": "^6.19.0"
conflicts with backend's ^5.13.0; align Prisma major versions to avoid runtime
issues. Update the backend package.json to "^6.19.0" (recommended) or change the
root to "^5.13.0" if you intentionally must stay on v5, then run package manager
install to update lockfiles, run any required Prisma upgrade steps (follow the
Prisma v5→v6 upgrade guide), regenerate clients (prisma generate) and run the
test suite/migrations to validate; if you keep differing versions, add a comment
in the repo docs explaining why with risk notes.

@PetraZeta
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PetraZeta commented Nov 17, 2025

💪 Fortalezas

Modelado muy sólido y coherente

Las entidades clave del flujo de reclutamiento (Candidate, Position, Application, Interview, InterviewFlow, etc.) están bien separadas y con relaciones claras.
Se entiende perfectamente el dominio de negocio sólo viendo el esquema.

Excelente alineación entre SQL y Prisma

Las FKs, tipos de datos, onDelete, índices y unicidades coinciden entre el script SQL y el schema.prisma.
Esto reduce muchísimo los problemas típicos de migraciones y hace que prisma migrate tenga pocas sorpresas.

Buen foco en rendimiento básico

Has indexado sistemáticamente:

  • FKs (candidateId, companyId, positionId, etc.)
  • Campos de filtrado típico como status, interviewFlowId, applicationId.

Esto es justo lo que un DBA quiere ver en una primera versión del modelo.


🛠 Recomendaciones

Eliminar índices redundantes en columnas únicas

En Candidate.email y Employee.email ya tienes @unique, que genera un índice único.
El @@index([email]) adicional crea un índice extra innecesario.
Puedes quedarte solo con @unique a menos que tengas una razón muy concreta para ambos.

Añadir reglas de negocio en el nivel de base de datos

Ejemplos muy útiles:

CHECK (salaryMin IS NULL OR salaryMax IS NULL OR salaryMin <= salaryMax)
CHECK (status IN ('pending', 'accepted', 'rejected', ...)) 

Esto protege la integridad aunque haya errores en la capa de aplicación.

Refinar unicidades y posibles índices compuestos

  • UNIQUE (positionId, candidateId) en Application → evita duplicados de la misma persona al mismo puesto.
  • UNIQUE (interviewFlowId, orderIndex) en InterviewStep → garantiza que el orden de pasos no se repita.

Índices compuestos donde haya filtrados combinados, por ejemplo:

  • (candidateId, status)
  • (interviewFlowId, orderIndex)

El trabajo está muy bien encaminado: se nota cuidado tanto en el diseño de datos como en la coherencia con Prisma.
Lo que te falta son detalles “de nivel avanzado”: afinar restricciones de negocio (CHECK, UNIQUE compuestos) y podar pequeños excesos (índices duplicados).

Con esos ajustes, este esquema quedaría perfectamente listo para producción en muchos contextos.
¡Sigue así, vas en modo “DBA pro”! 🚀

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2 participants